package com.testfileupload.uploadimg.design.observe.define;

import com.testfileupload.uploadimg.design.observe.Observer;

public class Client {
    public static void main(String[] args) {
        ConcreateSubject concreateSubject = new ConcreateSubject();
        Observer observer = new ConcreateObserver();

        concreateSubject.addObserver(observer);
        concreateSubject.doSomething("行动");
    }
}
